1. issue More and more lending pools are offering flash loans. In this case, a new pool has launched that is offering flash loans of DVT tokens for free. The pool holds 1 million DVT tokens. You ha...

1. issue There’s a pool with 1000 ETH in balance, offering flash loans. It has a fixed fee of 1 ETH. A user has deployed a contract with 10 ETH in balance. It’s capable of interacting with the pool...

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1. issue2. analysing3. solving

1. issue2. analysing3. solving

1. issue There’s a tokenized vault with a million DVT tokens deposited. It’s offering flash loans for free, until the grace period ends. To pass the challenge, make the vault stop offering flash lo...

1.语法1using A for * // 效果是，库A中的函数被附着在做任意的类型上 指令using A for B;用来附着库里定义的函数(从库A)到任意类型B。这些函数将会默认接收调用函数对象的实例作为第一个参数。 2. 示例代码2.1 Math库合约：123456789101112// 声明一个库合约library Math { // 定义一个加法函数 f...

官方文档 中文文档1. 基本指令(编译、测试、部署)1.1 执行 npx hardhat报错 原因： 缺少”@nomicfoundation/hardhat-toolbox“Hardhat插件。 解决方案： 1npm install --save-dev @nomicfoundation/hardhat-toolbox 如果报以下错误，则再执行一遍 npm install -...

官方文档✈注：solidity内联汇编中都是以字节为单位的，[0x00,0x20)表示的范围是2^32-1,但在计算机中占了256位，256 /8=32=0x20 1. 语法和 solidity一样，Assembly 也会解析注释、文字和标识符，所以你可以使用通常的 // 和 /* */ 来进行注释。 内联汇编程序由 assembly { ... &#...

calAddressByCreate21. 【使用python】这里是借鉴张学长的🤣 1.1 安装web3库1pip install web3 1.2 计算代码12345678910111213141516171819202122232425262728from web3 import Web3# value of your address(this) # must delet 0x# ...